Having just picked up Tome of Decay (interesting read, could have done with fewer abstractions in the section about running Black Crusades, but that's a personal niggle), I was keen to see the rules for crossing that threshold to Daemon Princedom, and for the most part I was quite happy with what it offered, even if the options seemed a little light for each of the different gods.
Now, being a real big fan of Tzeentch and psychic hijinks, I was very keen to see what sort of toys would be at my disposal should I ever get a character to such a point, but I've hit a bit of a snag concerning the nature of several Gifts (and indeed the Mark of Tzeentch itself) and the fact that psychic Daemon Princes are supposed to count as Daemonic for the purposes of determining psychic strength. While it states that whatever their previous archetype, they count as Daemonic for such tests upon becoming a Daemon Prince, it doesn't give a firm answer as to whether that also counts towards things like Warpsmith, which allow the character to use powers as though they were Bound. It certainly gives you options to pick them up as Daemonic Gifts, and the Mark of Tzeentch does the same thing, which is pretty much essential to getting into the club in the first place.
So does a Tzeentchian Daemon Prince count as Daemonic when using their powers, or Bound? On the one hand you might be getting less bang for your buck when it comes to the Push, and you'll not be immune to Psychic Phenomena, but given the wealth of psychic talents and benefits you can gain for rerolls and such, it's really a minor issue at best. Being Daemonic means they lose the ability to cast at the Fettered level, and while they have little worry for casting at Unfettered, Pushing becomes a real gamble, since it's a +10 for each level you seek to gain (up to 4 times, for a total of +40). Considering a 75+ is Perils territory which they aren't immune from, the Bound character actually has the better deal overall, in my opinion at least. Taking away the advantages of being Bound upon becoming a Tzeentchian badass Daemon Prince seems a little counter-intuitive to me, but I can see the logic on the other side of the argument as well.
Thoughts?